Evaporating apparatus.



N. H. HILLER. EVAPORATIN G APPARATUS. 'APPLIoATIoN FILED FEB. 5, 1912.

Patented Apr. 30, 1912.

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NICQLAI H. HILLER, F CARBONDHALE, PENNSYLVANIA.

EvAPon'A'rrNG APPARATUS.

Application mea February 1912. serial No. 675,612.

To'all' 'it may concern: i

Be it known that I, NrcoLAr H. HILLER, a

citizen ofthe UnitedStates of America, and

a resident of Carbondale, county of Lackawanna, State of Pennsylvania, have invented certain new and useful Improvements 1n Evaporating Apparatus, of'which the followlng is a specification. l l

My invention relates to evapor'atlng ap- Jloaratus, and is particularly intended for the production of pure rdistilled water such as is desired for the making of articial ice, but

I f is also applicable to the production'of drinking wateron ship-board and elsewhere, where purification of Water by distillation is desired, also for the distillation of. other. liquids. a f v My invention embodies improvements over the invention of my Patent No. 955,965, dated April 26, 1910, and, like the invention YAof said patent, is particularly applicable for,

use in connection with absorption refrigeration-apparatus and comprises a combination of distillation apparatus, an engine 'or engines, and vabsorptionrefrigeration apparatus, wherein live steam 'derived' 'froma' boiler/or other suitable source 'of supply is supplied direct to such engine or engines, the exhaust from-such engine or engines b'eing delivered to an evaporator and there` serving to make steam, which steam' is supplied to the generator'l or still of the absorption refrigeration apparatus, the condensate from the eva orator and condensate from the heating coi s of such generator, being `collected as theV pure water-to beproduced by the apparatus.` vPreferablyfa feed water heateriscombined with the other apparatus mentioned, the said condensates being passed through the feedwater beaten and serving to heat. the feed water for the boiler. Suitable means hereinafter described are .provided for supplementing, from the \.main steamv line, the supply of steam to the evaporator, to the generator,

and for supplementing the heat supplied to the feed water heater.

The improved apparatus herein described y. has. the advantage `over the apparatus of said Patent No. 955,965,that.drier steam'is "supplied to the engine or engines; also, the steam so supplied may conveniently be. athigher pressure than `is convenient in the apparatusof my said prior patent.

The object of'my invention is to Specification of Letters '.Patent.

Patented Apr. 3o, 1912.

dry `steam,.yand, preferably, steam of relatively high pressure, to the engine or engines of"the apparatus, while maintaining high heat economy; and to make the apparatus as simple and inexpensive as possible.

[n the accompanying drawing I illustrate "di'agran'mat'ically apparatus; embodying my f invention. n s.

In said drawing lldesignates a boiler or other suitable source of steam, which steam,

venient tobe operated as a part of the system; 8a feedwater heater; 9 and 140 traps. through which water is supplied tothe re boiler; and 11, a reboiler. f

, 14 .designates the main steam line for def f livering high lpressure steam to various parts Y of the apparatus. as hereinafter described,

and 20, 20 designate branches leading from this main steam line to the'steam chests of the engines 5, G and 7. f

21 designates an exhaust line receiving the and delivering the same to the ber 19 of evaporator 2. L 9 18 .designates a branch froml the'- main steam line 14 for supplementing the steam supplied to the heating chamber 19 of the evaporator, a suitable reducing valve18a being provided in this connection 18.,y alsol a suitable shutoff valve 18h.' f

heatingchamexhaust fromithef three engines, 5, Gfand 7 17 designates'the evaporatingchamber ef i i evaporator 2 and 17a Va pipe for conveying `steam therefrom .to the generator 3. Steam a suitable reducing` valve 34 .and shutoi" -valve 35.

Y 22 designates va -pipe fo'r` conveying the. condensate., yformed in thev heating coils of generator 3 to trap 9.

28 designates a suitable pipe for convey- 1 oo line 14 is connected to thispipe 17a through i ing the condensate formed in evaporating chamber 19 ofevaporatorf2, tothe trapl'O. 0

In theoperation of the apparatus as thus far described, the various engines of the apparatus, such, for example, as engines 5,

6 and 7, are operated on live steam supplied direct from boilercl through pipes 14 and 20, the exhaust from these engines being delivered. through pipe 21 to heating chamber 19 of evaporator 2, such exhaust steam there serving to evaporate Water in chamberv17 of I vhigher pressurek thanthe steam supplied to blo evaporator 2, the steani so generated pass. ing through pipe 17'a to the heating coils of generator 3 of the absorption refrigeration apparatus, and there servingto supply the heat necessary for the operation of such generator; the steam so supplied to generator 3 being condensed therein and being thence delivered, as Water of condensation, to trap 9 While the steam condensed in chamber 19 of the evaporator is delivered, as Water of condensation, to trap 10. The Water of condensation so supplied to said traps, isl .delivered to the reboiler 11, ypreferably in the manner and by the means hereinafter described.

It Will be seen that by this arrangement of apparatus, the various engines 5, 6 and 7 are operated by live or high -pressure steam, Which Will, ordinarily, be relatively Vdry steam, and also will ordinarily be steam of the corresponding engines of my prior above l mentioned patent. The exhaust steam from these engines 4is utilized for the operation of the evaporator 2, and the steam formed in said evaporator is utilized foi the operation of generator 3. Since it may at times happen,that the .exhaust steam supplied by the engines, 6 and 7 to the evaporator is fnotL Y times be insultiicient for the yoperation "of sufficient for operating such evaporator` at the desired capacity, the connect-ion 18 from .the main steam Yline to the evaporator is provided; the reducing valve 18a, in that connection, serving tor'educe,the steam so supplied from yline 14 to the'pressure desired to be maintained in the., heating chamber 19 v of the evaporator. Since the Vsteam supplied by the evaporator to the generator 3 may at such generator at its desired rate', the reduc- "ing valve 34 is provided to supply steam at such` times direct from the steam -line 14'to the line 17IL and so to the generator 3, said reducing valve 34 serving to reduce -the pressure of the steaml so drawn from the main steam line, to the Vpressure desired to be maintained in generator 3. By this appa? 5'- ratus so described, therefore, I accomplish thc vmain purpose ofmy invent-ion, namely, the operation of theengines 5, 6 and 7 on Y dry steam of relatively high-pressure, and

the operation of the generator 3 upon steam of suitable pressure, together -vvith the production of an adequate amount of distilled ,water obtained both from the heating coilsy of the generator and from the heatingchamber of the evaporator. v

Preferably, l combine with the apparatus, above described, a feed Water heater, Wherein the heat contained in the condensates feed Water'heater 8,- the Water to be heated y and steamer Water to dofthe heating iovvingl through separate conduitsof this heater, in opposite directions,'the steam so supplied to thefeed Water heater being nally condensed` therein. feed Water heater passes through a pipe 15r to the boiler 1, and through Ta pipe 16,

The water heatedy in this branching from this pipe 15, to the evaporating chamber 17 of the evaporator-2. A suitable float-valve 16a regulates the supply of said water to'evaporating chamber 17. rlhe Water of condensation formed in chamber'19 of the evaporator, and supplied, as previously described, by pipe 234 to trap 10, is delivered by said trap into an intermedi ate section 25 of the evaporator, and the Water of condensation supplied, as previously described, from the heating coilsr of generatorv3 through pipe 22 to trap 9, is sup,-

plied by said trap into 'an intermediate sec-v tion 24 of the feed Water heater. The Water condensed in. section 2,6 vof the feed Water4 heater passes through a pipe. 38, into the trap 10 and so into heater section 25. Valves 29 and 30 controlledby floats in traps 9 and 10 respectively, control the passage of Water from heaterclsecti'ons24 and 25, through a pipe( 31 into reboiler 11; and the gas-freed AWater fromy this reboiler passes through pipe 32 4into the lovvest section 23ofthe feedl .Waterheatexg andy thence out through a pipe 33.. From lthis it vvillY be seen that the feed Water, in passing through the pipe27, of the feed Water heater, is heated progressively,` by exchange of heat from uids of progres- -sively higher temperature; It Will beheated,l Irst, in section 23, by Water from the reboiler, having a temperature -of say 2100 Fahrenheittz'. 5Ae., a temperature somewhat less than the boiling point of Water at atlos mospheric pressure) vit Will be heated next, in section 24, by Water from the generator 3, I

having a temperature of say 250o FahrenL heit;` it Will be heated next in section v25, by Water from the evaporator 2, having a temperature of say 280 Fahrenheit; and it vvill be heated, nally, in section 26, by steam "from line 14, hayinga temperature Lof 'say 350 Fahrenheit.

What I claim is f l. Evaporating and condensing apparatus comprising a primary vapor generator adapted to evaporate under high pressure, one or more power-generating means connected to said vapor generator to be operated by the vapor therefrom, a secondary evaporator connected to said power generating means to be operated by the vapor exhausted therefrom, said secondary evaporatorl arranged to evaporate at a lower .pressure by exchange of heat Vwith and condensation of the exhaust of said power generating means, a generator ofv an absorption refrigeration apparatus arranged to be operated by, and to condense, the vapor produced by said secondary evaporator, and means for collecting the condensates of said secondary evaporator and said generator of the absorption refrigeration apparatus.

2. Evaporating and condensing apparatus comprising a primary vapor generator adapted to evaporate under high pressure, one or more power-generating means connected to said vapor generator to be operated by the vapor therefrom, a secondary evaporator connected to said power generating means to be operated by the vapor exhausted therefrom, said secondaryevaporator arranged to evaporate at a lower pressure by exchangeof heat with and condensation of the exhaust of saidpower'generating means, a generator of an absorption refrigeration .apparatus arranged to be operated by, and to condense, the vapor produced by said secondary evaporator, a .reboiler, and means -for conveying thereto the condensates from said secondary evaporator and said generator'of the absorption refrigeration apparatus. i

3. Evaporating and condensing apparatus comprising a vprimary vapor generator adapted to evaporate under high pressure, one-or .more power-generating means connected to said vapor generator to be operated bythe vapor therefrom, a secondary evaporator connected to said power generatingmeans to be operated by the vapor ex-v hausted therefrom, said secondary evaporator arranged to evaporate at a lower pressure by exchange of heat with and condensation of the'exhaust of said power generating` means, a generator of an absorption refrigeration` apparatus arranged to be operated byand to condense, the vapor produced by said secondaryevaporator, a heater for thefeed supply of said primary vvapor generator arranged'V to exchange heat between such feed supply and the condensates of said secondary evaporator and refrigerating apparatus generator, under dffferent pressures, a reboiler, and means for conveying-the cooled condensates from said heaters to said reboiler.

4. Evaporating and condensing apparatus comprising a' primary vaporgenerator adapted to evaporate under high pressure, one or more power-generating means connectedto said vapor generatorto be operated by the vapor therefrom, a secondary evaporator connected to saidpower generating means to be operated by the vapor' exhausted therefrom, said secondary evaporator arranged to evaporate at a lower pressure by exchange of heat with and condensation of the exhaust of said power generating means, a direct connection, including pressure reducing means, between said primary vapor generator' and said secondary evaporator, a generator of an absorption refrigeration apparatus arranged to be operated by, andA to condense, the vapor pro-V duced by` said secondary evaporator, and

means for collecting the condensates of said secondary evaporator and said vgenerator of the absorption refrigeration apparatus.

5. Evaporating and condensing apparatus comprising a primary vapor generator adapted to evaporate under high pressure,

one or more power-generating'means con-` nected to said vapor generator to be operated by the vapor therefrom, a secondary -ated by, and tov condense, the vapor produced by4 said secondary evaporator, a direct connection, including pressure reducing means, between said prlmary vapor generator and the generator of said refrigera- -tion apparatus, and means for collecting the condensates of `said secondary evaporator i and said generator of the absorption refrigeration apparatus.

6. Evaporating and condensing apparatus comprising a source of supply of high pressure steam, one or more engines connected thereto, an evaporator having heating means connected to said .engine or ,engincsto receive the exhaust therefrom, said evaporator adapted to produce steam by-exchange of heat with said exhaust, and to condense such `exhaust, means for.'condensing the steam' produced by said evaporator, and

fmeans for collecting the condensates of said evaporator and condensing means.

7. Evaporating and condensing apparatus comprising a source of supply of high pressure steam, one or more engines connected thereto, an evaporator having heating means connected to said engineor engines to receive the exhaust therefrom, said evaporator adapted tof produce steam fby exchange of heat with said xhaust,.and to condense the steam produced by said evaporator, means y t e v for collecting the condensates of said evaporator and condensing means, and a direct Iscriloing Witnesses.

connection from said source of high pressure steam to the heating means of said 5 evaporator, such direct connection including a reducing valve. f

bIn testimony whereof I have signed this specification in the presence of two sub- NICOLAI H. yMILLER.

' Witnesses:

H. M. MARBLE, D. A. DAVIES. 

